ragehe flood prone city of napa was spared. be mayor says that's because overspent $250 million over the r st 20 years to keep the nearby napa river out of city streets. er the water was coming very fast and furious. but the culvert system we've teated was able to take that extra water and get it safely through town. th reporter: most of the flooding was confined to finedultural areas like this ltural arunty vineyard owned by s muchrson. >> that was under as much as six waet of water. noteporter: but he's not worried. grateft, he's grateful. > this just recharges our water supply and makes it better for next year's potential growth. we don't have to irrigate the vines maybe as much as we'd have to irrigate in a year without any flooding. >> reporter: there are still about 15,000 customers without power this morning. the majority of them here in sonoma county. this area got more than two inches of rain in the last 24 hours and, norah and charlie, there is now more rain in the forecast for tomorrow. ary of stately as much as we s